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-rw-r--r--common/hexutil/hexutil_test.go186
1 files changed, 186 insertions, 0 deletions
diff --git a/common/hexutil/hexutil_test.go b/common/hexutil/hexutil_test.go
new file mode 100644
index 000000000..3f261c9a7
--- /dev/null
+++ b/common/hexutil/hexutil_test.go
@@ -0,0 +1,186 @@
+// Copyright 2016 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package hexutil
+
+import (
+ "bytes"
+ "encoding/hex"
+ "math/big"
+ "testing"
+)
+
+type marshalTest struct {
+ input interface{}
+ want string
+}
+
+type unmarshalTest struct {
+ input string
+ want interface{}
+ wantErr error
+}
+
+var (
+ encodeBytesTests = []marshalTest{
+ {[]byte{}, "0x"},
+ {[]byte{0}, "0x00"},
+ {[]byte{0, 0, 1, 2}, "0x00000102"},
+ }
+
+ encodeBigTests = []marshalTest{
+ {referenceBig("0"), "0x0"},
+ {referenceBig("1"), "0x1"},
+ {referenceBig("ff"), "0xff"},
+ {referenceBig("112233445566778899aabbccddeeff"), "0x112233445566778899aabbccddeeff"},
+ }
+
+ encodeUint64Tests = []marshalTest{
+ {uint64(0), "0x0"},
+ {uint64(1), "0x1"},
+ {uint64(0xff), "0xff"},
+ {uint64(0x1122334455667788), "0x1122334455667788"},
+ }
+
+ decodeBytesTests = []unmarshalTest{
+ // invalid
+ {input: ``, wantErr: ErrEmptyString},
+ {input: `0`, wantErr: ErrMissingPrefix},
+ {input: `0x0`, wantErr: hex.ErrLength},
+ {input: `0x023`, wantErr: hex.ErrLength},
+ {input: `0xxx`, wantErr: hex.InvalidByteError('x')},
+ {input: `0x01zz01`, wantErr: hex.InvalidByteError('z')},
+ // valid
+ {input: `0x`, want: []byte{}},
+ {input: `0X`, want: []byte{}},
+ {input: `0x02`, want: []byte{0x02}},
+ {input: `0X02`, want: []byte{0x02}},
+ {input: `0xffffffffff`, want: []byte{0xff, 0xff, 0xff, 0xff, 0xff}},
+ {
+ input: `0xffffffffffffffffffffffffffffffffffff`,
+ want: []byte{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
+ },
+ }
+
+ decodeBigTests = []unmarshalTest{
+ // invalid
+ {input: `0`, wantErr: ErrMissingPrefix},
+ {input: `0x`, wantErr: ErrEmptyNumber},
+ {input: `0x01`, wantErr: ErrLeadingZero},
+ {input: `0xx`, wantErr: ErrSyntax},
+ {input: `0x1zz01`, wantErr: ErrSyntax},
+ // valid
+ {input: `0x0`, want: big.NewInt(0)},
+ {input: `0x2`, want: big.NewInt(0x2)},
+ {input: `0x2F2`, want: big.NewInt(0x2f2)},
+ {input: `0X2F2`, want: big.NewInt(0x2f2)},
+ {input: `0x1122aaff`, want: big.NewInt(0x1122aaff)},
+ {input: `0xbBb`, want: big.NewInt(0xbbb)},
+ {input: `0xfffffffff`, want: big.NewInt(0xfffffffff)},
+ {
+ input: `0x112233445566778899aabbccddeeff`,
+ want: referenceBig("112233445566778899aabbccddeeff"),
+ },
+ {
+ input: `0xffffffffffffffffffffffffffffffffffff`,
+ want: referenceBig("ffffffffffffffffffffffffffffffffffff"),
+ },
+ }
+
+ decodeUint64Tests = []unmarshalTest{
+ // invalid
+ {input: `0`, wantErr: ErrMissingPrefix},
+ {input: `0x`, wantErr: ErrEmptyNumber},
+ {input: `0x01`, wantErr: ErrLeadingZero},
+ {input: `0xfffffffffffffffff`, wantErr: ErrUintRange},
+ {input: `0xx`, wantErr: ErrSyntax},
+ {input: `0x1zz01`, wantErr: ErrSyntax},
+ // valid
+ {input: `0x0`, want: uint64(0)},
+ {input: `0x2`, want: uint64(0x2)},
+ {input: `0x2F2`, want: uint64(0x2f2)},
+ {input: `0X2F2`, want: uint64(0x2f2)},
+ {input: `0x1122aaff`, want: uint64(0x1122aaff)},
+ {input: `0xbbb`, want: uint64(0xbbb)},
+ {input: `0xffffffffffffffff`, want: uint64(0xffffffffffffffff)},
+ }
+)
+
+func TestEncode(t *testing.T) {
+ for _, test := range encodeBytesTests {
+ enc := Encode(test.input.([]byte))
+ if enc != test.want {
+ t.Errorf("input %x: wrong encoding %s", test.input, enc)
+ }
+ }
+}
+
+func TestDecode(t *testing.T) {
+ for _, test := range decodeBytesTests {
+ dec, err := Decode(test.input)
+ if !checkError(t, test.input, err, test.wantErr) {
+ continue
+ }
+ if !bytes.Equal(test.want.([]byte), dec) {
+ t.Errorf("input %s: value mismatch: got %x, want %x", test.input, dec, test.want)
+ continue
+ }
+ }
+}
+
+func TestEncodeBig(t *testing.T) {
+ for _, test := range encodeBigTests {
+ enc := EncodeBig(test.input.(*big.Int))
+ if enc != test.want {
+ t.Errorf("input %x: wrong encoding %s", test.input, enc)
+ }
+ }
+}
+
+func TestDecodeBig(t *testing.T) {
+ for _, test := range decodeBigTests {
+ dec, err := DecodeBig(test.input)
+ if !checkError(t, test.input, err, test.wantErr) {
+ continue
+ }
+ if dec.Cmp(test.want.(*big.Int)) != 0 {
+ t.Errorf("input %s: value mismatch: got %x, want %x", test.input, dec, test.want)
+ continue
+ }
+ }
+}
+
+func TestEncodeUint64(t *testing.T) {
+ for _, test := range encodeUint64Tests {
+ enc := EncodeUint64(test.input.(uint64))
+ if enc != test.want {
+ t.Errorf("input %x: wrong encoding %s", test.input, enc)
+ }
+ }
+}
+
+func TestDecodeUint64(t *testing.T) {
+ for _, test := range decodeUint64Tests {
+ dec, err := DecodeUint64(test.input)
+ if !checkError(t, test.input, err, test.wantErr) {
+ continue
+ }
+ if dec != test.want.(uint64) {
+ t.Errorf("input %s: value mismatch: got %x, want %x", test.input, dec, test.want)
+ continue
+ }
+ }
+}